Lincoln F5XZ-19D990-AA Seal - Special

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This information applies only to air conditioning on 1980 through 1995 models, which use an accumulator/drier with a fixed orifice tube. Have the system discharged by a dealer service department or an automotive air conditioning repair facility. Disconnect the cable at the negative battery terminal. Disconnect the liquid line from the evaporator core at the accumulator/drier. Pour a small amount of refrigerant oil into the evaporator core tube to lubricate the O-rings seals on the orifice tube during removal. Using the special tool, engage the tool on the fixed orifice tube and remove it from the liquid refrigerant line. Caution: DON'T try to remove or install the fixed orifice tube with anything except the special tool. To try to remove any other way will break the fixed orifice tube inside the evaporator core tube, and may require the replacement of the evaporator core. Cap or plug the open refrigerant lines immediately to prevent any dirt or excessive moisture from entering the system. Lubricate the O-rings on the new fixed orifice tube with clean refrigerant oil. Place the new fixed orifice tube into the special tool (the same tool is used for removal and installation) and insert it into the evaporator core tube until the orifice tube is seated at the stop. Remove the tool. Replace the O-ring at the refrigerant line spring lock coupling. Reconnect the refrigerant lines. Have the system evacuated, recharged and leak tested by a dealer service department or an air conditioning repair facility.

To remove the plugged fixed orifice tube, you need to disconnect the liquid line from the evaporator core, pour a small amount of refrigerant oil into the evaporator core tube to lubricate the O-ring seals on the orifice tube, use a special tool to remove the fixed orifice tube, and immediately cap or plug the open refrigerant line.

The installation process is the reverse of removal. The expansion tube should be inserted with the shorter end in first, toward the evaporator. The refrigerant line and the expansion tube should be lubricated with clean refrigerant oil to aid assembly. The fitting and refrigerant line should be retightened. Finally, the system should be evacuated, recharged, and leak-tested by the shop that discharged it.

The system should be discharged by a dealer service department or an automotive air conditioning repair facility.

To install a new fixed orifice tube, you should lubricate the O-rings on the new tube with clean refrigerant oil, place the new tube into the special tool and insert it into the evaporator core tube until it is seated at the stop, remove the tool, replace the O-ring at the refrigerant line spring lock coupling, and reconnect the refrigerant lines.